| /* |
| * Copyright (C) 2017-2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(MEDIA_STREAM) |
| |
| #include "CAAudioStreamDescription.h" |
| #include "CaptureDevice.h" |
| #include "RealtimeMediaSource.h" |
| #include "RealtimeMediaSourceFactory.h" |
| #include <AudioToolbox/AudioToolbox.h> |
| #include <CoreAudio/CoreAudioTypes.h> |
| #include <wtf/text/WTFString.h> |
| |
| typedef struct OpaqueCMClock* CMClockRef; |
| |
| namespace WTF { |
| class MediaTime; |
| } |
| |
| namespace WebCore { |
| |
| class AudioSampleBufferList; |
| class AudioSampleDataSource; |
| class BaseAudioSharedUnit; |
| class CaptureDeviceInfo; |
| class WebAudioSourceProviderAVFObjC; |
| |
| class CoreAudioCaptureSource : public RealtimeMediaSource { |
| public: |
| WEBCORE_EXPORT static CaptureSourceOrError create(String&& deviceID, String&& hashSalt, const MediaConstraints*, PageIdentifier); |
| static CaptureSourceOrError createForTesting(String&& deviceID, AtomString&& label, String&& hashSalt, const MediaConstraints*, BaseAudioSharedUnit& overrideUnit, PageIdentifier); |
| |
| WEBCORE_EXPORT static AudioCaptureFactory& factory(); |
| |
| CMClockRef timebaseClock(); |
| |
| protected: |
| CoreAudioCaptureSource(String&& deviceID, AtomString&& label, String&& hashSalt, uint32_t persistentID, BaseAudioSharedUnit*, PageIdentifier); |
| virtual ~CoreAudioCaptureSource(); |
| BaseAudioSharedUnit& unit(); |
| const BaseAudioSharedUnit& unit() const; |
| |
| private: |
| friend class BaseAudioSharedUnit; |
| friend class CoreAudioSharedUnit; |
| friend class CoreAudioCaptureSourceFactory; |
| |
| bool isCaptureSource() const final { return true; } |
| void startProducingData() final; |
| void stopProducingData() final; |
| |
| void delaySamples(Seconds) final; |
| |
| std::optional<Vector<int>> discreteSampleRates() const final { return { { 8000, 16000, 32000, 44100, 48000, 96000 } }; } |
| |
| const RealtimeMediaSourceCapabilities& capabilities() final; |
| const RealtimeMediaSourceSettings& settings() final; |
| void settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag>) final; |
| |
| bool interrupted() const final; |
| CaptureDevice::DeviceType deviceType() const final { return CaptureDevice::DeviceType::Microphone; } |
| |
| void initializeToStartProducingData(); |
| void audioUnitWillStart(); |
| |
| #if !RELEASE_LOG_DISABLED |
| const char* logClassName() const override { return "CoreAudioCaptureSource"; } |
| #endif |
| |
| uint32_t m_captureDeviceID { 0 }; |
| |
| std::optional<RealtimeMediaSourceCapabilities> m_capabilities; |
| std::optional<RealtimeMediaSourceSettings> m_currentSettings; |
| |
| bool m_isReadyToStart { false }; |
| |
| BaseAudioSharedUnit* m_overrideUnit { nullptr }; |
| }; |
| |
| class CoreAudioSpeakerSamplesProducer { |
| public: |
| virtual ~CoreAudioSpeakerSamplesProducer() = default; |
| // Main thread |
| virtual const CAAudioStreamDescription& format() = 0; |
| virtual void captureUnitIsStarting() = 0; |
| virtual void captureUnitHasStopped() = 0; |
| // Background thread. |
| virtual OSStatus produceSpeakerSamples(size_t sampleCount, AudioBufferList&, uint64_t sampleTime, double hostTime, AudioUnitRenderActionFlags&) = 0; |
| }; |
| |
| class CoreAudioCaptureSourceFactory : public AudioCaptureFactory { |
| public: |
| WEBCORE_EXPORT static CoreAudioCaptureSourceFactory& singleton(); |
| |
| void beginInterruption(); |
| void endInterruption(); |
| void scheduleReconfiguration(); |
| |
| void devicesChanged(const Vector<CaptureDevice>&); |
| |
| WEBCORE_EXPORT void registerSpeakerSamplesProducer(CoreAudioSpeakerSamplesProducer&); |
| WEBCORE_EXPORT void unregisterSpeakerSamplesProducer(CoreAudioSpeakerSamplesProducer&); |
| WEBCORE_EXPORT bool isAudioCaptureUnitRunning(); |
| WEBCORE_EXPORT void whenAudioCaptureUnitIsNotRunning(Function<void()>&&); |
| |
| private: |
| CaptureSourceOrError createAudioCaptureSource(const CaptureDevice&, String&&, const MediaConstraints*, PageIdentifier) override; |
| CaptureDeviceManager& audioCaptureDeviceManager() final; |
| const Vector<CaptureDevice>& speakerDevices() const final; |
| }; |
| |
| inline CaptureSourceOrError CoreAudioCaptureSourceFactory::createAudioCaptureSource(const CaptureDevice& device, String&& hashSalt, const MediaConstraints* constraints, PageIdentifier pageIdentifier) |
| { |
| return CoreAudioCaptureSource::create(String { device.persistentId() }, WTFMove(hashSalt), constraints, pageIdentifier); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(MEDIA_STREAM) |